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 LED LED LED LED, Lets talk about LED

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TSzealless
post Jul 6 2013, 03:50 PM

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QUOTE(sekkee @ Jul 5 2013, 10:49 PM)
Are you still selling the Aztech LEDs ?
I'm going to use LED for my whole house.
Already bought about 30 Oxy 6" and looking to buy another 25 more. I don't mind exploring other brands as long as it is white frame, round and 6" and most importantly can last.
Can you let me know what stocks you have an how much for each. I can also send you my floor plan to count how many I need.
Plaster ceiling is going up in my house so I will need to decide soon on the remainder.
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Hi, Yes, i also carry Phillips too
Aztech is not too bad, 2 years warranty, 16 watt about 1200 lumen, all colors 3000k, 4000k and 6500k
round and square, drop me an email kenny@vertsolcon.com, i have stocks ready, phillips no, i need to grab from them, too expensive to stock
TSzealless
post Jul 6 2013, 03:51 PM

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QUOTE(ozak @ Jul 5 2013, 08:05 PM)
I always curious how the china made LED light perform. Are the light up to the spec as it claim. 1day will try it out and post here. icon_rolleyes.gif
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The correct question is , which is not manufacture in China hahahah ....
most of the chips and drivers are made from there ...
well, China do make very hi-spec LED, no brand customise product, for those hotel, casino, airport, etc
they are very nice, nicer than all the brand out there, but price also very nice
TSzealless
post Jul 6 2013, 04:01 PM

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QUOTE(Maknusia @ Jul 5 2013, 02:12 PM)
right now we have 3 of this panasonic CFL bulbs. each is RM10 (22w X 3)

room size is roughly 12 X 15.
ceiling height is 8 feet
room color, light blue with one side of the wall is sliding glass door (10 feet)

The Ceiling light is almost similar to this; except its with 3 lights
http://www.ikea.com/us/en/catalog/products/50231951/
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so its about 3.6m x 4.5m
well probably 2 unit 11 watt 4" downlight should able to do that , about 110 lux base on 10+ ft ceiling, so i guess you should have a bout 175 if 8ft
or lower lux 1 unit 16 watt 6" Downlight

you can download aztech apps from google playstore or apple store FREE,
it can calculate how many fixture on how many lux u need


weikee
post Jul 6 2013, 04:15 PM

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Quality stuff need to pay. Don't expect quality stuff cost peanut.
Hornet012
post Jul 6 2013, 06:43 PM

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QUOTE(weikee @ Jul 6 2013, 04:15 PM)
Quality stuff need to pay. Don't expect quality stuff cost peanut.
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good point....sometimes its hard to get correct information from the seller because all looked almost the same in terms of its brightness when its new. But when time passed you will notice those cheap LEDs brightness will dropped significantly. I'll said 3 months. Good quality LED will maintain its brightness loss in less than 3% annually. (correct me if im wrong) tongue.gif
ozak
post Jul 7 2013, 12:04 AM

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QUOTE(zealless @ Jul 6 2013, 03:48 PM)
Hi, the theoretical the product will last as the design specification or at least the test results. but the world is not ideal, there are so many factor that causes the LED driver to fail. Well to be fair to LED, non of the CFL product last as advertise, i.e. 8,000 hours, most of them fail after 2000 - 3000 hours. if you lucky it may last until 5 or 6K. but they are much cheaper to replace , so people ignore it.

ya, for normal house hold , we just gauge using our experience or by the rule of thumb
if you guys are interested, read the following article

http://www.houzz.com/ideabooks/12520025/li...ontent=gallery9

if pretty much rule of thumb, however it is pretty tricky to apply to LED
well my product RM 128 - 138 , give about 1100 - 1200 lux depends on temperature, let me know if you need any to test smile.gif

well , i am not expert, just sharing on my experience, you are pretty good having a nice lux meter to measure those, i mean we just us dialux, the actual when we measure sometimes is off ... hair ... people say light design is ART , i am really a lousy painter then ... lol ...
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It is not theoretically the product last as the design spec. It must last as the design spec. As a designer, you should know all this possible problem happen in your r&d. And deal with it before you get your product out in the market.

What is not ideal is, it is a copy product with reduce the quality in order to sell cheap.

CFL do have quality type that can last as it claim. The current Hitachi CFL that I use can last as long as 8k hr or 2yrs. It is made in Japan. Normally I will sapu all if I can find. Specially the old packaging.
ozak
post Jul 7 2013, 12:20 AM

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QUOTE(zealless @ Jul 6 2013, 03:51 PM)
The correct question is , which is not manufacture in China hahahah ....
most of the chips and drivers are made from there ...
well, China do make very hi-spec LED, no brand customise product, for those hotel, casino, airport, etc
they are very nice, nicer than all the brand out there, but price also very nice
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The CREE downlight I test is made in Mexico. And they are able to give 3yrs warranty. But I already modify it. void the warranty. sad.gif
ksyap01
post Jul 8 2013, 09:17 AM

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CIMA lights offering
Evenzo LED, model 8009, 12 W, warm white, 1 set with casing, 6" is rm75 and 4" is rm55.

anyone know the quality? and price is okay?
TSzealless
post Jul 8 2013, 01:45 PM

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QUOTE(Hornet012 @ Jul 6 2013, 06:43 PM)
good point....sometimes its hard to get correct information from the seller because all looked almost the same in terms of its brightness when its new. But when time passed you will notice those cheap LEDs brightness will dropped significantly. I'll said 3 months. Good quality LED will maintain its brightness loss in less than 3% annually. (correct me if im wrong)  tongue.gif
*
Get certificate or Spec report from supplier, i will always give my customer when they request
lumen degration is what a lot of owner do not take account , which me you really did you home work smile.gif
TSzealless
post Jul 8 2013, 01:48 PM

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QUOTE(ozak @ Jul 7 2013, 12:04 AM)
It is not theoretically the product last as the design spec. It must last as the design spec. As a designer, you should know all this possible problem happen in your r&d. And deal with it before you get your product out in the market.

What is not ideal is, it is a copy product with reduce the quality in order to sell cheap.

CFL do have quality type that can last as it claim. The current Hitachi CFL that I use can last as long as 8k hr or 2yrs. It is made in Japan. Normally I will sapu all if I can find. Specially the old packaging.
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Yes, even Osram LED , some made in china, some still made in europe,
the price difference is shocking, 30% more ! now as importer, i don't even consider europe because other will just sell you the exact thing made in china 30% cheaper

yup, CFL do have good quality, but now a day people don't even buy OSRAM, PANASONIC, HITACHI or PHILLIPS , all sell china and malaysia brand
TSzealless
post Jul 8 2013, 01:51 PM

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QUOTE(ksyap01 @ Jul 8 2013, 09:17 AM)
CIMA lights offering
Evenzo LED, model 8009, 12 W, warm white, 1 set with casing, 6" is rm75 and 4" is rm55.

anyone know the quality? and price is okay?
*
And and check the spec

Power factor
Lumens
CRI
Chip
Warranty

Price is ok, YET and Evenzo is the more affordable ones, but spec wise ... up to individual

I can offer 4" RM 90 ish 11w , depend how many units u looking for full retail RM110

Power factor 0.9
Lumens 1000
CRI >82
Chip Samsung
Warranty 2 years


TSzealless
post Jul 8 2013, 01:53 PM

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QUOTE(Hornet012 @ Jul 6 2013, 06:43 PM)
good point....sometimes its hard to get correct information from the seller because all looked almost the same in terms of its brightness when its new. But when time passed you will notice those cheap LEDs brightness will dropped significantly. I'll said 3 months. Good quality LED will maintain its brightness loss in less than 3% annually. (correct me if im wrong)  tongue.gif
*
Even CREE have few different chips , some are more , some are less
unless you study the lab report for everyone of them

I know china chip one will loose about 8 - 10% a year , max 50% lost
Taiwan Epistar less , much better than china brand

of coz
Bridgelux, Osram, Samsung, Citizen, etc much better, coz they are the top chip makers
ksyap01
post Jul 8 2013, 02:19 PM

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QUOTE(zealless @ Jul 8 2013, 01:51 PM)
And and check the spec

Power factor
Lumens
CRI
Chip
Warranty

Price is ok, YET and Evenzo is the more affordable ones, but spec wise ... up to individual

I can offer 4" RM 90 ish 11w , depend how many units u looking for full retail RM110

Power factor 0.9
Lumens 1000
CRI >82
Chip Samsung
Warranty 2 years
*
how about LED bulbs only not the full set one? plan buy about 30 bulbs, might be 15 CFL and 15 LED, or 30 LED...


klaatu08
post Jul 8 2013, 02:27 PM

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QUOTE(zealless @ Jul 8 2013, 01:45 PM)
Get certificate or Spec report from supplier, i will always give my customer when they request
lumen degration is what a lot of owner do not take account , which me you really did you home work smile.gif
*
is lumen degration cover under warranty?
Hornet012
post Jul 8 2013, 03:17 PM

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QUOTE(klaatu08 @ Jul 8 2013, 02:27 PM)
is lumen degration cover under warranty?
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AFAIK it's case by case on different brand.
Some branded manufacturer do have this kind of warranty but not those rojak brand.
And remember to ask what type of warranty they giving (1 to 1 exhange or send back for repair)


TSzealless
post Jul 9 2013, 02:54 PM

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QUOTE(ksyap01 @ Jul 8 2013, 02:19 PM)
how about LED bulbs only not the full set one? plan buy about 30 bulbs, might be 15 CFL and 15 LED, or 30 LED...
*
The one is economical is Aztech 6w 550 lm @ 3000k , about the RM38 each
but no stock at the moment
TSzealless
post Jul 9 2013, 03:01 PM

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QUOTE(klaatu08 @ Jul 8 2013, 02:27 PM)
is lumen degration cover under warranty?
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normal consumer, No ahahaha
project , YES

klaatu08
post Jul 9 2013, 03:04 PM

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QUOTE(zealless @ Jul 9 2013, 03:01 PM)
normal consumer, No ahahaha
project , YES
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too bad biggrin.gif sad.gif


ksyap01
post Jul 9 2013, 09:36 PM

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QUOTE(zealless @ Jul 9 2013, 02:54 PM)
The one is economical is Aztech 6w 550 lm @ 3000k , about the RM38 each
but no stock at the moment
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Aztech is origin from Singapore? The driver reliable? heard LED driver life span short is poor quality.

Any 6" square LED bulb 9~12w? Budget less than rm50/unit.
TSzealless
post Jul 10 2013, 05:05 PM

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QUOTE(ksyap01 @ Jul 9 2013, 09:36 PM)
Aztech is origin from Singapore? The driver reliable? heard LED driver life span short is poor quality.

Any 6" square LED bulb 9~12w? Budget less than rm50/unit.
*
Aztech from Singapore, Made in China
Driver failure about 2% so far , so every 100 units 2 will come back 1 year or 2.
2 years warranty

Aztech 6" wattage 8w, 16w, 24w, 30w
i don't think budget enough, very sorry, you need to source for some lower specs

At the moment, Aztech is the lowest spec and cheapest brand i carry, others i don't deal because warranty issue

your budget can go for Evanzo , YET , CYK
i think they are within your budget.

most of the lighting shop have them.

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